About
Philip W. Woo is a partner at Duane Morris LLP and managing partner of the firm’s Silicon Valley office. His practice focuses on patent law, particularly litigation, patent prosecution, and contested proceedings before the Patent Trial and Appeal Board. He represents companies in disputes and patent matters involving technically demanding products and systems. His background in electrical engineering helps him work with inventions involving computer networks, software, semiconductor technology, telecommunications, and related fields.
Woo graduated with honors from the University of Southern California Gould School of Law in 1994, where he participated in the USC Interdisciplinary Law Journal. He received a B.S. in Electrical Engineering from Southern Methodist University in 1990, graduating cum laude. His technical education and legal training support patent analysis that must connect the details of engineering systems with legal standards governing inventions, validity, and infringement.
Woo has served as lead counsel in patent litigation and proceedings involving related disputes before multiple forums. He was counsel in the first inter partes review proceeding to result in a final determination invalidating claims of the patent under review. His technical work covers computer architecture, storage systems, networking, microprocessors, artificial intelligence, cryptography, wireless communications, autonomous vehicles, semiconductor design, and medical devices. He coordinates teams handling significant intellectual property matters.
Philip W. Woo advises businesses whose patent matters involve both legal strategy and complicated engineering evidence. His litigation, prosecution, and PTAB experience provides multiple perspectives on how patents are developed, defended, and challenged. He handles intellectual property issues of commercial significance in industries where innovation depends on sophisticated technology. His work combines technical understanding with litigation management and patent-related advocacy for clients facing contested rights.
Law Office Affiliations
- Partner, Duane Morris LLP
- Member, The State Bar of California
- Member, The American Intellectual Property Law Association (AIPLA)
- Member, PTAB Bar Association
- Member, National Asian Pacific American Bar Association (NAPABA)
- Member, Asian American Bar Association of the Greater Bay Area (AABA)
- Member, Asian Pacific American Bar Association of Silicon Valley (APABA-SV)
- Fellow, Litigation Counsel of America
Licensed State
- California
Education
- USC Gould School of Law
Juris Doctor (JD) - Southern Methodist University
Bachelor of Science (BS) in Electrical Engineering
Awards & Badges



- Intellectual Property
- Intellectual Property Litigation
- Lawsuits & Disputes
- Licensing
- Litigation
- Mergers & Acquisitions
- Patent
- Trademark
- Trade Secrets





